Conversion between cstring and char and byte

In VC, cstring classes have various usage forms and are rich and colorful, but sometimes the conversion from traditional data types has become a challenge for many people.

Next I will briefly introduce the relationships between them.

1. How to convert cstring to char:

Cstring m_cstr = "ABC ";
Char * m_char = "def ";

Char * Lp = M_cstr.getbuffer (m_cstr.getlength ());  
M_cstr.releasebuffer ();

// Convert the opposite char * To cstring
M_cstr.format ( " % S " , LP); // LP is an array pointer

 

Type 2: Forced type conversion to lpctstr
Lptstr P = M_cstr.getbuffer ( 10 );
Strcpy (count, P ); M_cstr.releasebuffer ();

 

2. Conversion between cstring and byte

Byet is unsigned character type. The principle is similar to that of char.

 

Cstring m_cstr;
Byte m_byte [ 100 ];
M_byte = (Byte * ) M_cstr.getbuffer (m_cstr.getlength ()); // Cstring to byte

Likewise:
M_cstr.format ( " % S " , M_byte ); // Byte string output

3 Conversion between byte and char type

Strcpy and memcpy functions can be forcibly converted.

Strcpy (m_char, (char *) m_byte );

Strlen = (char *) m_byet;

memcpy (m_char, m_byte, strlen);